Vehicle-mounted relay device and relay method

CN114731298BActive Publication Date: 2025-01-10AUTONETWORKS TECH LTD +2
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Patent Information

Application Number
CN202080079624.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2019-11-22
Filing Date
2020-11-10
Publication Date
2025-01-10
Estimated Expiration
2040-11-10

AI Technical Summary

Technical Problem

In a vehicle, when signal relay exists between communication lines using different communication protocols, it is difficult for the prior art to realize high-speed relay, especially the problem that the startup signal cannot be directly relayed before transitioning from the sleep state to the wake-up state.

Method used

Design a vehicle relay device, which has a processing unit that can switch between sleep and non-sleep states, and when receiving the start signal of the first communication protocol in the sleep state, outputs the start signal of the second communication protocol to realize the different communication protocols. high-speed relay. The device includes a start signal output unit, which can directly output the corresponding start signal when the processing unit is in a sleep state, avoiding waiting for the processing unit to wake up.

Benefits of technology

High-speed signal relay between different communication protocols is realized, the time between signal reception and device startup is shortened, and the response speed of the device in the vehicle is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

Provided are a vehicle-mounted relay device and a relay method that can be expected to relay a start signal at high speed between communication lines using different communication protocols. The vehicle-mounted relay device of this embodiment connects a first communication line for communication corresponding to a first communication protocol and a second communication line for communication corresponding to a second communication protocol, and relays the communication between the first communication line and the second communication line. The vehicle-mounted relay device includes: a processing unit that can be switched between a sleep state and a non-sleep state, and in the case of the non-sleep state, performs a process of relaying the communication between the first communication line and the second communication line; and a start signal output unit, which outputs the start signal of the second communication protocol to the second communication line when the processing unit is in a sleep state and receives the start signal of the first communication protocol from the first communication line.
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Citation Information

Patent Citations

  • On-vehicle gateway device

    JP2005045521A